/Engine/Plugins/Experimental/GeometryScripting/Source/GeometryScriptingCore/Public/GeometryScript/ListUtilityFunctions.h
Returns the index of the last element in theIndexList. Note, the value -1 will be returned if the list is empty or invalid.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="GeometryScript|ListUtils", Meta=(ScriptMethod)) static int GetIndexListLastIndex ( [FGeometryScriptIndexList](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptIndexList) IndexList )